Improvement in rockers for cradles



R. A. JACKSON.

Improvement in Rockers for Cradles, &c.

N0.H6,061, I V PatentedJune2-0,1871.

Mhz esses UNITED STATES PATENT QFFICE.

RICHARD A. JACKSON, OF ALLIANCE, OHIO, ASSIGNOR TO HIMSELF, FRAN- 013 G.WALKER, AND PATRICK FETHERSTONE, OF ALLEGHENY, PA.

IMPROVEMENT IN ROCKERS FOR CRADLES, 80c.

Specification forming part of Letters Patent No. 116,061, dated June 20,1871.

To all whom it may concern:

Be it known that I, RICHARD A. J AGKSON,

of Alliance, in the county of Stark and State of Ohio, have inventedcertain new and useful Improvements in Rockers; and I do hereby declarethat the following is a full, clear, and exact description thereof,reference being had to the accompanying drawing and to the letters ofreference marked thereon.

The nature of my new article of manufacture consists in providing thebearing-surface of the rocker with an elastic strip made in a separatepiece from the stops, with which it is combined and held in a plaingroove in the rocker, near each end of which are secured the stops,which consist of two gum balls secured in sockets, the depth of which isequal to half the diameter of each ball.

To enable others skilled in the art to makeand use my invention, I willproceed to describe more fully its construction and operation.

In the accompanying drawing which forms part of my specification, Figurel is a side View of a rocker provided with a gum or elastic shoe andstops. Fig. 2 is a transverse section of the same at line y of Fig. l. I

In the accompanying drawing, A represents the rocker, which may beconstructed in any of the known forms, and secured to the cradle, crib,hobby-horse, and chair in the usual manner. In the under surface of therocker is a groove, in which is secured a gum or elastic strip, B, andnear each end of the rocker is secured a gum or elastic ball, whichforms an elastic stop, 0.

The advantage of making the strip B separate from the stops 0 consistsin avoiding the necessity of a large number of molds for forming the gumstrips and stops, which is required when they are made in one piece. Insuch case a mold is necessary for each size of rocker, and the number ofdifferent sizes and forms as well as kinds of rockers is very great.Making the gum strip in one piece and the stops separate from thestrips, as hereinbefore described, will enable the manufacturer to makethe rocker cheaper, and if the strip B should wear out it can bereplaced with a new strip without the loss of the stops 0.

The sockets for the stops 0 are first formed by a suitable tool, thenthe groove for the strip B is formed. By forming the sockets first astarting and finishing point is obtained for the cutting-bit of theplane or tool used for formin g the groove for the strip B. The strip Bis first secured in its groove by small finishingnails or by a suitablecement then the stops O are secured by similar means in their sockets.

It will be observed that, by making the sockets for the stops 0 in depthequal to half the diameter of the stop, (which is a gum ball,) it willrequire but little to hold the stop 0 in its place, and that it cannotbe forced sidewise.

The advantage of providing rockers with a gum or elastic shoe and stops,as hereinbefore described, consists in imparting to the cradle, crib,hobby-horse, and chair an easy, noiseless, and elastic motion, and anelastic rebound by the stops, adding thereby comfort and ease of motionto said articles, the value of which will be apparent when they are usedon a hard floor or in the nursery-room. The creaking of rockers to themother or nurse while trying to put a child to sleep is a source ofgreat annoyance, and always very trying on the nerves of the sick andafiicted. This creaking of the rockers is, by the use of the gum orelastic shoe, entirely avoided.

I wish it clearly understood that I do not claim, broadly, arockerprovided with an elastic bearing or stops.

Having thus described the nature, construction, and operation of myimprovement, what I claim as of my invention is- A new article ofmanufacture, viz., a rocker provided with a plain grooveand sockets, inwhich are secured the strip B and stops 0, said strip and stops being inseparate pieces from each other, as herein described.

It. A. JACKSON.

Witnesses:

A. 0. JOHNSTON, JAMES J. JOHNSTON.

